Invention Grant
- Patent Title: Lead frame for integrated circuit device having J-leads and Gull Wing leads
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Application No.: US15980572Application Date: 2018-05-15
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Publication No.: US10217700B1Publication Date: 2019-02-26
- Inventor: Zhigang Bai , Jinzhong Yao , Xingshou Pang , Jun Li , Meng Kong Lye
- Applicant: NXP USA, INC.
- Applicant Address: US TX Austin
- Assignee: NXP USA, INC.
- Current Assignee: NXP USA, INC.
- Current Assignee Address: US TX Austin
- Agent Charles E. Bergere
- Priority: CN201711281209 20171207
- Main IPC: H01L23/495
- IPC: H01L23/495 ; H01L23/31

Abstract:
A lead frame for a packaged integrated circuit (IC) device has alternating first and second leads that protrude from a package body in respective first and second planes, where the second plane is parallel to and below the first plane. The first leads are formed into Gull Wing shaped leads and the second leads are formed into J-shaped leads. Inner lead portions of the first and second leads are maintained in the first plane with a tape. An inner lead portion of each of the second leads, proximate to and extending to the outer lead portion, is down-set, so that when the outer lead portion is pressed down by a mold tool to locate the outer lead portion of the second leads in the second plane, the inner lead portion of the second leads is maintained in the first plane and does not separate from the tape.
Information query
IPC分类: